Envelopes and Subdivisions

Individual spaces, areas and functional curve parts are not modelled. Instead they are created in a process where an envelope, a surface or a curve is subdivided by limits defined in CRM, that is surfaces, curves and grid positions. The starting point when creating a space arrangement is the envelope which is defined either as a number of limits forming a closed volume, an already created space or by selecting a modelled primitive. The area and curve arrangements are using one of the CRM entities surface or curves as starting point. Furthermore, already generated spaces, areas and functional curves can be defined as the starting point of a new arrangement. If these are space arrangements, a hierarchy of spaces can be created which is further explained below.

The subdivision is a completely automatic process. Spaces or areas are created in the arrangement when the subdivision results in closed volumes or areas.

Many different arrangements can use the same subdividing limits, for example a certain deck surface is used as limit in a painting area arrangement as well as in a compartment arrangement. The modelling work made on this deck can be reused and parallel arrangements are automatically created referencing the same modelled geometry information.